Pressure is determined as force per unit area of the surface. The unit of pressure, Pascal ( $1 P a = 1 N m^{- 2}$ ) if mass of air at sea level is $1034 g {cm}^{- 2}$ , calculate the pressure in Pascal

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

$1.01332 \times 10^{5} Pa$

$1.01332 \times 10^{4} Pa$

$1.01332 \times 10^{3} Pa$

$1.01332 \times 10^{1} Pa$

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

$\begin{array}{l} P = \frac{F}{A} \\ = \frac{1034 \times 9.8 {ms}^{- 2}}{{cm}^{2}} \times \frac{1 kg}{1000 g} \times \frac{(100)^{2} {cm}^{2}}{1 m^{2}} \\ = 1.01332 \times 10^{5} kg m^{- 1} s^{- 2} \end{array} W e k n o w, \begin{array}{l} 1 N = 1 kg {ms}^{- 2} Then \\ 1 P a = 1 {Nm}^{- 2} = 1 kg m^{- 1} s^{- 2} \end{array} \begin{array}{l} 1 P a = 1 kg m^{- 1} s^{- 2} \\ 1 Pressure = 1.01332 \times 10^{5} Pa \end{array}$